I have a lot of images which have white borders around it. I would like to crop those borders in one batch, preferably from command line. I believe that it can be done with ImageMagick, but I couldn't ...

I have had Ubuntu 13.04 for three weeks, I'm an absolute beginner. Some pictures (when browsing through Mozilla Firefox) have green tint. How to get rid of the tint? I didn't find anything on Google.
...

I got this error (quoted below) when upgrading from 12.10 to 13.04. Should I be worried(since I can detect my flaws in my instalation) but I get this at any new linux-header upgrade I do.
What does it ...

By default when I open an image it fits to the window size (scale it down). I have to hit the button "Show the image at its normal size" every time when I go to the Next/Previous image or open a new ...

Is there a command-line program that can convert an image to ascii art and then save that output as an image e.g. jpg or png?
To illustrate what I'm in need of, I want to convert the image below into ...

Can anyone recommend me a C library for loading and saving .bmp images. I need to load the image, edit some bits, and then save it. I have found the DevIl library, but I can't find the way to use it ...

When I try to print a PDF file that contains images, the printing stops just before the first page that contains an image. If the first page contains an image, only a single blank page is printed.
I ...

I have had problems with Grub Customizer with 12.10. One of the problems is that the up and down arrow keys don't function when I add a background image. I recently had to reinstall Ubuntu because I ...

I am looking for testing version of Ubuntu 13.04, I have looked in this question Alternate ISO image for current unstable (alpha/beta) releases but the links in the answer did not show me the place to ...

I'm using avconv version 0.8.5-6:0.8.5-0ubuntu0.12.10.1, and am trying to encode a sequence of PNGs into a video, using the wildcard format (avconv -f image2 -i img%d.jpg /tmp/a.mpg), found in both ...

I would like to extract images from a video Exp01.avi, the video is 25 minutes long. I want the images to be extracted from the video after every 1 minute interval. Please someone tell me how to do ...

I love feh to classify my image collections, I've set the actions to move the current image to a certain directory, the problem comes when trying to open gifs, feh doesn't animate them.
Therefore I ...

As per a requirement mentioned here
the size of photos submitted should be between 20kb-50kb.
I have my scanned photos which have been cropped but the sizes are still ~139 kb.
If I reduce the pixels ...

What is the fastest / most responsive image viewer?
I'm looking for a program that is responsive and opens large .jpgs fast - progressively and/or by cleverly loading only parts it will render. A 6 ...

hi i have some image problem both in libreoffice draw and default image viewer that the picture is so noisy but when i look into another image viewer the image become less noisy. and i realize when i ...

I've been tinkering a lot with the drivers for my Intel HD Graphics CPU - installing different drivers and activating SNA. So far without breaking anything.
The only change I've noticed is that the ...